在字节数组中查找字节模式

Question

today I am trying to find a pattern of bytes in an array (in this case pointer)

I do know I could use std::string needle() and haystack etc. but I was wondering if I could use that with BYTE (unsigned char)?

I also know the length of the BYTE *_zone so that's not an issue either. Any ways I could go forth to do this? (also any code examples are appreciated :))

Thanks again!

Answer 1

std::string is actually a typedef for std::basic_string<char> . You can use std::basic_string<BYTE> instead, and most (all?) std::string functionality, in particular .find() , will just work.

Answer 2

如果您不想使用现有的库函数，请实现自己喜欢的通用字符串匹配算法，例如Knuth-Morris-Pratt ， Boyer-Moore或Rabin-Karp 。

Answer 3

The find() method of std::string is a member function that is intended to find another std::string or a character array char* inside the std::string

So to answer your question if the haystack is a std::string you should be able to pass the char* arrays directly to the find methods.

If the haystack is not a std::string you can make a std::string out of it and then do the same.